Home / 811,007.16-1,119,141.80-448,402.56

Finding the Fourth Proportional to 811,007.16, 1,119,141.80 and 448,402.56

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Solution

The fourth proportional to 811,007.16, 1,119,141.80 and 448,402.56 is: 618,768.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,007.16 : 1,119,141.80 = 448,402.56 : x
  2. Step 2: Convert to fraction form
    811,007.16/1,119,141.80 = 448,402.56/x
  3. Step 3: Cross multiply
    811,007.16x = 1,119,141.80 × 448,402.56
  4. Step 4: Simplify right side
    811,007.16x = 501,826,048,123.01
  5. Step 5: Solve for x
    x = 501,826,048,123.01/811,007.16
  6. Step 6: Final answer
    x = 618,768.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.